Model:CosmoLand
From CSDMS
CosmoLand
Introduction
History
Papers
CosmoLand Questionnaire
Contact Information
| Model: | CosmoLand |
| Contact person: | Brian Yanites (model developer) |
| Institute: | University of Colorado |
| City: | Boulder, CO |
| Country: | USA |
| Email: | brian.yanites@colorado.edu |
| 2nd person involved: | -- |
| 3rd person involved: | -- |
Model description
| Model type: | Single model for the terrestrial domain. |
| Description: | The model tracks both surface CRN concentration and concentration eroded off hillslopes into fluvial network in a simplified landscape undergoing both landslide erosion and more steady 'diffusive-like' erosion. Sediment mixing is allowed in the fluvial network. Code can be used to help successfully develop CRN sampling procedures in terrains where landslides are important. |
Technical information
| Supported platforms: | Linux, Mac OS X, Windows |
| Programming language: | Matlab |
| Model development started at: | 2005 and ended in 2008 |
| To what degree will the model become available: | Source code will be available |
| Current license type: | -- |
| Memory requirements: | <512MB |
| Typical run time: | Minutes to days |
Input / Output description
| Input parameters: |
|
| Input format: | Matlab .m file |
| Output parameters: | Mass, atoms, landslide size, fluvial residence time, mixed mass and atoms fraction |
| Output format: | .mat file |
| Post-processing software (if needed): | no |
| Visualization software (if needed): | Yes, Matlab |
Process description
| Processes represented by model: | Tracking of cosmogenic nuclides on surface and in fluvial system of a landslide dominated drainage basin |
| Key physical parameters & equations: | Cosmogenic nuclide production decay with depth. Power-law distribution of landslide size. Calculates a fluvial storage reservoir. |
| Length scale & resolution constraints: | Drainage basin size controls the length of the model runs. Cell size should not be increased to shorten model runs. |
| Time scale & resolution constraints: | Yearly timesteps. Most runs go for 500,000 yrs or more. |
| Numerical limitations and issues : | Matlab may max out memory if drainage basin is too large. Since this is a simplified landscape with wrap-around boundary conditions, one workaround is to do numerous smaller runs and add the output. |
Testing
| Available calibration data sets: | -- |
| Available test data sets: | -- |
| Ideal data for testing: | CRN data both hillslope and fluvial. |
User groups
| Currently or plans for collaborating with: | Not currently. |
Documentation
| Key papers of the model: | For reference see Yanites et al. (2008) Numerical and analytical models of cosmogenic radionuclide dynamics in landslide dominated drainage basins, JGR-Earth Surface, in press. |
| Is there a manual available: | no |
| Model website if any: | -- |
Additional comments
| Comments: | -- |
